Zero Trust Model

This document puts forward a dozen recommendations for adopting the Zero Trust security model in a controlled and gradual manner, through a carefully thought-out process of transformation and the implementation of key technical principles.

Publish the 24 June 2025 Updated 24 June 2025
ANSSI Back to basics Zero Trust

ANSSI's Back to Basics aim to enlighten all our readers, whatever their level of technical knowledge, on the major challenges of cybersecurity. They reflect the agency's point of view at the time of publication, and are not intended as detailed recommendations, like our guides. Rather, they set out independent best practices that can be implemented in a complementary manner. These recommendations are likely to be regularly updated in line with developments in the threat environment, the technologies used, our feedback, etc.